The word you want is not 'happy' but rather 'contentment' 'thankfulness' or 'joy'. Happiness comes from happenings - fortune and luck - like, 'perhaps'. I thought of a passage from James 1:1-4 - "Count it all joy, my brothers, when you meet trials of various kinds, for you know that the testing of your faith produces steadfastness. And let steadfastness have its full effect, that you may be perfect and complete, lacking in nothing." Of course, this is talking about faith in the Lord Jesus, but you get the idea. In that sense 'happiness' is the way rather than the rewards along the way (though those are nice too).